| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/chromeos/system_logs/lsb_release_log_source.h" |
| |
| #include <string> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/file_util.h" |
| #include "base/files/file_path.h" |
| #include "base/logging.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| using content::BrowserThread; |
| |
| const char kInvalidLogEntry[] = "<invalid characters in log entry>"; |
| const char kEmptyLogEntry[] = "<no value>"; |
| |
| namespace { |
| |
| typedef std::pair<std::string, std::string> KeyValuePair; |
| |
| } // namespace |
| |
| namespace chromeos { |
| |
| void LsbReleaseLogSource::Fetch(const SysLogsSourceCallback& callback) { |
| DCHECK(!callback.is_null()); |
| |
| SystemLogsResponse* response = new SystemLogsResponse; |
| BrowserThread::PostBlockingPoolTaskAndReply( |
| FROM_HERE, |
| base::Bind(&LsbReleaseLogSource::ReadLSBRelease, response), |
| base::Bind(callback, |
| base::Owned(response))); |
| } |
| |
| void LsbReleaseLogSource::ReadLSBRelease(SystemLogsResponse* response) { |
| DCHECK(response); |
| |
| const base::FilePath lsb_release_file("/etc/lsb-release"); |
| std::string lsb_data; |
| bool read_success = base::ReadFileToString(lsb_release_file, &lsb_data); |
| // if we were using an internal temp file, the user does not need the |
| // logs to stay past the ReadFile call - delete the file |
| if (!read_success) { |
| LOG(ERROR) << "Can't access /etc/lsb-release file."; |
| return; |
| } |
| ParseLSBRelease(lsb_data, response); |
| } |
| |
| void LsbReleaseLogSource::ParseLSBRelease(const std::string& lsb_data, |
| SystemLogsResponse* response) { |
| std::vector<KeyValuePair> pairs; |
| base::SplitStringIntoKeyValuePairs(lsb_data, '=', '\n', &pairs); |
| for (size_t i = 0; i < pairs.size(); ++i) { |
| std::string key, value; |
| TrimWhitespaceASCII(pairs[i].first, TRIM_ALL, &key); |
| TrimWhitespaceASCII(pairs[i].second, TRIM_ALL, &value); |
| |
| if (key.empty()) |
| continue; |
| if (!IsStringUTF8(value) || !IsStringUTF8(key)) { |
| LOG(WARNING) << "Invalid characters in system log entry: " << key; |
| (*response)[key] = kInvalidLogEntry; |
| continue; |
| } |
| |
| if (value.empty()) |
| (*response)[key] = kEmptyLogEntry; |
| else |
| (*response)[key] = value; |
| } |
| } |
| |
| } // namespace chromeos |
| |